Princess Diana's niece and British fashion model Lady Kitty Spencer is fast becoming one of the most popular members of high British society.
But royal fans have been quick to point out that aside from her late aunt, Kitty also bears a striking resemblance to another hugely popular member of the royal family - Princess Charlotte.
Now, an adorable throwback photo Kitty posted yesterday to celebrate her 29th birthday, proves just how much she looks like Charlotte.
Kitty uploaded a gorgeous pic of herself as a little girl celebrating her birthday as a child, at a Barbie-themed party!
"29 🎂 Thank you for such beautiful and kind birthday messages today 💗💗 I couldn't have asked for a better day surrounded by the people I love ☀️🙏🏽," Kitty wrote on Instagram alongside the photo.
"Thank you to everybody who made it the most special birthday I can remember (although this Barbie party looked pretty cool too!) 💗"
Some of Kitty followers pointed out the uncanny resemblance between Charles Spencer's daughter and Princess Charlotte.
"I thought it was Princess Charlotte," one fan wrote, while others commented, "She resembles Princess Charlotte" and "You look like Princess Charlotte of Cambridge!"
This isn't the first time Lady Kitty's fans have spotted a resemblance between herself and Charlotte in a throwback photo.
Kitty is a big fan of sharing old photos of herself on Instagram and it's clear in every picture that the family genes are very strong.
Prior to her appearance at the Melbourne Cup this year, where the royal attended as a guest of car brand Lexus, she posted a picture of herself riding a horse in 1992.
"Lexus Melbourne Cup here we come!! Channeling my inner jockey since 1992!" Kitty captioned the post.
Fans couldn't believe just how much Kitty looked exactly like Princess Charlotte in the photo.
"You look exactly like Charlotte," one fan commented.
"Gosh, you look like Princess Charlotte here!" another said, while another said, "Like Charlotte Cambridge."
Back in 2018, Kitty shared a photograph of herself on her first day of school.
In the black and white picture, she is standing next to shrubbery with her finger coyly in her mouth, posing cheekily for the camera.
Fans couldn't get enough of the similarities between Kitty and her first cousin, Prince William's daughter.
"I thought it was Princess Charlotte for a moment," one fan wrote in the comments.
"Now we know how amazingly beautiful Charlotte will be in the future," another added.
WATCH BELOW: Princess Charlotte on her first day of school. Story continues after video.
Princess Charlotte, four, just started at big school this year, joining her brother Prince George at Thomas's Battersea in London.
She also made her debut at Sandringham on Christmas Day, joining her mother Duchess Catherine and father Prince William for the first time as they attended church with The Queen, a tradition the royal family carries out every year at Christmas time.